Subepithelial deposits are seen in-

Histologically, the main feature in membranous nephropathy is diffuse thickening of the capillary wall. Electron microscopy reveals that this thickening is caused in pa by subepithelial deposits, which nestle against the GBM and are separated from each other by small, spike-like protrusions of GBM matrix that form in reaction to the deposits (spike and dome pattern). Ref: Robbins book of pathology. 9th edition. Page 526